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Radeon HD 5850 vs Radeon R9 M390X

Intro

The Radeon HD 5850 features a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is comprised of 1440(288x5) SPUs, 72 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 M390X, which features clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X 125 Watts
Radeon HD 5850 151 Watts
Difference: 26 Watts (21%)

Memory Bandwidth

In theory, the Radeon R9 M390X will be 25% quicker than the Radeon HD 5850 in general, due to its greater data rate. (explain)

Radeon R9 M390X 160000 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 32000 (25%)

Texel Rate

The Radeon R9 M390X should be quite a bit (about 77%) better at AF than the Radeon HD 5850. (explain)

Radeon R9 M390X 92544 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 40344 (77%)

Pixel Rate

The Radeon HD 5850 will be a small bit (more or less 0%) more effective at AA than the Radeon R9 M390X, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon R9 M390X 23136 Mpixels/sec
Difference: 64 (0%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 5850

Amazon.com

Check prices at:

Radeon R9 M390X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 5850 Radeon R9 M390X
Manufacturer AMD AMD
Year September 30, 2009 2015
Code Name Cypress PRO Tonga
Memory 1024 MB 4096 MB
Core Speed 725 MHz 723 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 151 watts 125 watts
Bandwidth 128000 MB/sec 160000 MB/sec
Texel Rate 52200 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1440(288x5) 2048
Texture Mapping Units 72 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 2154 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 5850

Amazon.com

Check prices at:

Radeon R9 M390X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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